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 * To change this template, choose Tools | Templates
 * and open the template in the editor.
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package com.kai.wiki.servlet.title_secure;

import com.kai.wiki.util.UploadUtil;
import com.kenny.wiki.ejb.entity.Title;
import com.kenny.wiki.ejb.entity.TitleItem;
import com.kenny.wiki.ejb.entity.User;
import com.kenny.wiki.ejb.entity.facade.remote.CategoryFacadeRemote;
import com.kenny.wiki.ejb.entity.facade.remote.TitleFacadeRemote;
import com.kenny.wiki.ejb.entity.facade.remote.TitleItemFacadeRemote;
import java.io.IOException;
import java.util.Date;
import java.util.Map;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Kenny Lin
 */
public class SecureTitleServlet extends HttpServlet {
    @EJB
    TitleFacadeRemote titleFacadeRemote;
    @EJB
    TitleItemFacadeRemote titleItemFacadeRemote;
    @EJB
    CategoryFacadeRemote categoryFacadeRemote;
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        request.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=UTF-8");
        String flag = (String)request.getParameter("flag");
        int titleId = 0;
        if(request.getParameter("titleId")!=null){
            titleId = Integer.parseInt(request.getParameter("titleId"));
        }
        if("delete".equals(flag)){
            titleFacadeRemote.remove(titleFacadeRemote.find(titleId));
            response.sendRedirect(request.getContextPath()+"/user/secure/my_title");
        }else if("edit".equals(flag)){
            Title title = titleFacadeRemote.find(titleId);
            request.setAttribute("kenny.wiki.show.title", title);
            request.getRequestDispatcher("/user/secure/edit_title.jsp").forward(request, response);
        }else if("update".equals(flag)){
            Map map = UploadUtil.upload(request, "/upload");
            Title title = new Title();
            title.setTitleId(Integer.parseInt((String)map.get("title_id")));
            title.setTitleName((String)map.get("title_name"));
            title.setCategoryId(Integer.parseInt((String)map.get("category")));
            title.setTitleIntro((String)map.get("title_intro"));
            title.setTitlePhoto((String)map.get("title_photo"));
            this.titleFacadeRemote.edit(title);
            response.sendRedirect(request.getContextPath()+"/user/secure/my_title");
        }else if("find_title".equals(flag)){
            request.setAttribute("kenny.wiki.user.title.content.edit", titleFacadeRemote.find(titleId));
            request.getRequestDispatcher("/user/secure/edit_title_content.jsp").forward(request, response);
        }else if("edit_titleIntro".equals(flag)){
            Title title = titleFacadeRemote.find(titleId);
            title.setTitleIntro((String)request.getParameter("title_intro"));
            title.setTitleEdit(title.getTitleEdit()+1);
            titleFacadeRemote.edit(title);
            request.getRequestDispatcher("/view_title").forward(request, response);
        }else if("find_titleItem".equals(flag)){
            request.setAttribute("kenny.wiki.user.titleItem.edit", titleItemFacadeRemote.find(Integer.parseInt(request.getParameter("titleItemId"))));
            request.getRequestDispatcher("/user/secure/edit_title_item.jsp").forward(request, response);
        }else if("edit_titleItem".equals(flag)){
            TitleItem titleItem = titleItemFacadeRemote.find(Integer.parseInt(request.getParameter("titleItemId")));
            //创建新版本的词条项
            TitleItem newItem = new TitleItem();
            newItem.setTiName(titleItem.getTiName());
            newItem.setTitleId(titleItem.getTitleId());
            newItem.setTiTime(new Date());
            User user = (User)request.getSession().getAttribute("kenny.wiki.user");
            newItem.setUserId(user.getUserId());
            newItem.setTiContent((String)request.getParameter("ti_content"));
            newItem.setTiVersion(titleItem.getTiVersion()+1);
            newItem.setTiDisplay(1);
            titleItemFacadeRemote.create(newItem);

            //修改旧版本的词条项
            titleItem.setTiDisplay(0);
            titleItemFacadeRemote.edit(titleItem);
            //增加编辑次数
            Title title = titleFacadeRemote.find(titleItem.getTitleId());
            title.setTitleEdit(title.getTitleEdit()+1);
            titleFacadeRemote.edit(title);
            
            request.getRequestDispatcher("/view_title").forward(request, response);
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
